Rigid-Flexible Coupling Dynamics Simulation of 3-RPS Parallel Robot Based on ADAMS and ANSYS

2013 ◽  
Vol 290 ◽  
pp. 91-96 ◽  
Author(s):  
Hai Tao Luo ◽  
Zheng Cang Chen ◽  
Yu Quan Leng ◽  
Hong Guang Wang
Keyword(s):  
Simulation Method ◽  
Parallel Robot ◽  
Structure Design ◽  
Dynamics Simulation ◽  
Response Analysis ◽  
Robot Dynamics ◽  
Element Analysis ◽  
Measuring Point ◽  
Design And Optimization ◽  
Multi Body

This paper mainly investigated the rigid-flexible dynamics simulation method of multi-body system. The 3-RPS parallel robot dynamics model is created by ADAMS (multi-body dynamics software) and ANSYS (finite element analysis software). In accordance with the flexible-body theory, we analyzed mechanical characteristics of parallel robot with no-load or full-load working condition, and got the deformation of end measuring point, maximum stress position and dynamics stress curve. The analysis method is more intuitional and accurate, and can increase the accuracy of dynamic response analysis of links under the dynamic loads. The simulation results create conditions for structure design and optimization of 3-RPS parallel robot.

scholarly journals Rigid-flexible coupled dynamics analysis of 3-revolute-prismatic-spherical parallel robot based on multi-software platform

2019 ◽  
Vol 11 (3) ◽  
pp. 168781401982645 ◽  
Author(s):  
Haitao Luo ◽  
Jia Fu ◽  
Lichuang Jiao ◽  
Ning Chen ◽  
Tingke Wu
Keyword(s):  
Computer Technology ◽  
Maximum Stress ◽  
Maximum Error ◽  
Parallel Robot ◽  
Mechanical Analysis ◽  
Response Analysis ◽  
Analysis Method ◽  
Software Platform ◽  
Design And Optimization ◽  
Multi Body

Kinematics and dynamics are the most important and basic tool for robot research. With the help of computer technology and the respective advantages of three kinds of software, a new method of co-simulation of parallel robot based on multi-platform is proposed, and the mechanical model of multi-body system of 3-revolute-prismatic-spherical parallel robot is established. According to the mechanical analysis of the parallel robot, the rigid-flexible coupling analysis method is adopted. The displacement error shows a periodic change with a period of 4.2 s and the maximum error is [Formula: see text]. The dangerous part of the structure is the root of the lower link, and its maximum stress is 202.64 MPa less than the yield strength of the material. The multi-software platform co-simulation improves the accuracy of the dynamic response analysis of the part under dynamic load, and provides an important theoretical basis for the design and optimization of the parallel robot.

Multi-Body Dynamics Simulation and Finite Element Analysis of the Car’s Sub-Frame

2012 ◽  
Vol 253-255 ◽  
pp. 2107-2112
Author(s):  
Jian Min Li ◽  
Chuan Yang Sun ◽  
Zhang Cheng Yang ◽  
Zu Xi Yi
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Field ◽  
Simulation Method ◽  
Dynamics Simulation ◽  
Element Analysis ◽  
Engine Load ◽  
The Finite Element Analysis ◽  
Body Dynamics ◽  
Multi Body

For the problem that car sub-frame constraint connection complex and effective load more difficult to determine, using finite element and multi-body dynamics ADAMS co-simulation method, Analyzed on a Volkswagen vehicle sub-frame, obtained the accurate load on the sub-frame which are used by engine suspension. The finite element analysis results show that engine load is the greatest impact on the sub-frame stress field, which can be reduced by increasing the area of engine and the sub-frame contacting, thereby prolong the life of sub-frame.

Kinematics and Dynamics Simulation Research for Roller Coaster Multi-Body System

2011 ◽  
Vol 421 ◽  
pp. 276-280 ◽  
Author(s):  
Ge Ning Xu ◽  
Hu Jun Xin ◽  
Feng Yi Lu ◽  
Ming Liang Yang
Keyword(s):  
Structural Design ◽  
3D Model ◽  
Structure Design ◽  
Dynamics Simulation ◽  
Body System ◽  
Load Spectrum ◽  
Roller Coaster ◽  
Simulation Research ◽  
Calculation Results ◽  
Multi Body

To assess the roller coaster multi-body system security, it is need to extract the running process of kinematics, dynamics, load spectrum and other features, as basis dates of the roller coaster structural design. Based on Solidworks/motion software and in the 3D model, the calculation formula of the carrying car velocity and acceleration is derived, and the five risk points of the roller coaster track section are found by simulation in the running, and the simulation results of roller coaster axle mass center velocity are compared with theoretical calculation results, which error is less than 4.1%, indicating that the calculation and simulation have a good fit and providing the evidence for the roller coaster structure design analysis.

The Dynamic Characteristic Analysis of Vibration System for Longitudinal and Torsional Ultrasonic Vibration Honing

2014 ◽  
Vol 633-634 ◽  
pp. 1289-1293
Author(s):  
Hong Bing Zhao ◽  
Xue Hong Shen
Keyword(s):  
Ultrasonic Vibration ◽  
Performance Optimization ◽  
Structure Design ◽  
Mode Analysis ◽  
Response Analysis ◽  
Movement Trajectory ◽  
Vibration System ◽  
Characteristic Analysis ◽  
Processing Efficiency ◽  
Element Analysis

The tool’s unique movement trajectory in longitudinal and torsional ultrasonic machining technology can help chip extraction. Cutting liquid can offer good lubrication, cleaning and cooling. It also can prolong tool’s life, improve the processing quality and processing efficiency, so it is widely used in precision and ultra-precision machining. It builds the model of ultrasonic vibration system, based on the motion analysis of longitudinal and torsional ultrasonic vibration honing. In addition, mode analysis, transient dynamic analysis and harmonic response analysis are carried out by means of finite element analysis software ANSYS. Using graphics and curve in the postprocessing module describe the results of numerical simulation. It can provide powerful model and theoretical basis for the structure design and performance optimization of ultrasonic vibration system, which is used for longitudinal and torsional ultrasonic vibration honing.

Study on Wheel-Rail Coupled Vibration of Metro with Co-Simulation of Finite Element Analysis and Multi-Body Dynamics Simulation

2015 ◽  
Vol 752-753 ◽  
pp. 636-641
Author(s):  
Wen Jing Sun ◽  
Dao Gong ◽  
Jin Song Zhou
Keyword(s):  
Finite Element ◽  
Dynamics Simulation ◽  
Track Structure ◽  
Coupled Vibration ◽  
Dynamics Model ◽  
Element Analysis ◽  
Modal Reduction ◽  
Body Dynamics ◽  
Flexible Track ◽  
Multi Body

Based on the multi-body dynamics theory and modal-reduction analysis, finite element method and multi-body dynamics were combined to establish the flexible track model. The rigid-flexible coupled dynamics model can reflect the features of coupled vibration accurately. When the flexibility of the rail, damping and stiffness of support layers under the rail are taken into consideration, the whole track structure acted as a buffer while wheel and rail is interacting with each other. Compared with rigid track model, the wheel-rail vibration is less in the flexible track model. The proposed method in this paper is simple and effective, which makes the calculation of vehicle-track dynamic response more convenient and quick.

The Transient Response Analysis for the Damped Free Vibration of Plywood Box

2011 ◽  
Vol 338 ◽  
pp. 513-516 ◽  
Author(s):  
Yi Ding ◽  
Ying Xiang ◽  
Shan Qi Zeng ◽  
Yan Bo Yang
Keyword(s):  
Free Vibration ◽  
Structural Reliability ◽  
Reference Value ◽  
External Pressure ◽  
Structure Design ◽  
Response Analysis ◽  
Element Analysis ◽  
Mass System ◽  
Time Stress ◽  
The Finite Element Analysis

Aiming at the unreasonable phenomenon of the plywood box′ design in the current market, the mechanics research for the structure design of the plywood box was taken. In this paper, a damping spring-mass system for the plywood box is established by using the finite element analysis software ANSYS. In the case of simulated external pressure, analyzed the transient dynamic response, the relation between displacement and time, stress and time were gained in order to verify the structural reliability of the damped free vibration of plywood box during the carriage. Finally, the reliable basis for the design of plywood box was provided, the certain reference value of the standardized and the serialized production for plywood box was provided, as well as the basis of some analysis for the design of cushioning.

Research on Vehicle Dynamics Simulation for Driving Simulator

2011 ◽  
Vol 308-310 ◽  
pp. 1946-1950 ◽  
Author(s):  
Fang Tang ◽  
Yan Ding Wei ◽  
Xiao Jun Zhou ◽  
Zhu Hui Luo ◽  
Ming Xiang Xie ◽  
...  
Keyword(s):  
Real Time ◽  
Vehicle Dynamics ◽  
Driving Simulator ◽  
Simulation Method ◽  
Dynamics Simulation ◽  
Tyre Model ◽  
Power Train ◽  
Model And Simulation ◽  
Body Dynamics ◽  
Multi Body

In order to fulfill the requirement of vehicle dynamics performance and real-time capability in driving simulator, modeling and simulation method of a four-wheeled vehicle model based on multi body dynamics software Vortex was studied. Fundamental construction and dynamics properties of the model such as body, chassis, wheels, power train, suspension and tyre model were described. The model was tested to simulate on the C grade of road. The results indicate that the model and simulation method can well represent vehicle dynamics performance and high real-time capability of simulation, and is worthy to apply to driving simulator in the future.

Analysis of Crankshaft Fatigue Strength Based on Integrated Finite Element Model

2010 ◽  
Vol 44-47 ◽  
pp. 1558-1562 ◽  
Author(s):  
Xiao Ping Chen ◽  
Ru Fu Hu ◽  
Shu Hua Zheng
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Fatigue Limit ◽  
Limit Load ◽  
Element Model ◽  
Response Analysis ◽  
Analysis Model ◽  
Element Analysis ◽  
Complex Mechanical Systems ◽  
Multi Body

Aiming at the complex mechanical systems for the prediction of the fatigue limit load requirements, this paper examines the relationship among finite element analysis model and the performance models. And a finite element modeling method for fatigue analysis is proposed. The finite element model can support static, modal, fatigue, and multi-body dynamic response analysis in parallel and collaboration. This method helps improve the fatigue limit load analysis.

Dynamics Simulation of Multi-Mechanism Operation Parameterization Bridge Crane Modeling Based on Rigid-Flexible Coupling System

2013 ◽  
Vol 330 ◽  
pp. 659-667
Author(s):  
Feng Qi Wu ◽  
Hai Xiang Xu ◽  
Xiao Ying Tang ◽  
Wen Qing Yao ◽  
Yu Jiang ◽  
...  
Keyword(s):  
System Modeling ◽  
Coupled System ◽  
Dynamics Simulation ◽  
Systems Dynamics ◽  
Bridge Crane ◽  
Analysis Software ◽  
Element Analysis ◽  
Operation Process ◽  
Coupling System ◽  
Multi Body

The rigid-flexible coupled system modeling of parameterization bridge crane is conducted based on Pro/E, Multi-body systems dynamics simulation & Finite element analysis software, simulation of multi-mechanism operation process is performed as well. The results of dynamic simulation were analyzed and summarized, which is essential to complete crane fatigue strength calculation.

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